PRP Classification & Reporting
This tool classifies entered PRP parameters according to published classification systems. Complete classification codes are shown only when the information required by the respective system is available. Missing or ambiguous components are visibly marked as partial classifications and are not estimated.
Measurements
Cell counts before and after centrifugationPreparation and application
yellow outline = not yet answeredEhrenfest distinguishes preparations by leukocyte content and fibrin architecture but gives no numerical threshold for “leukocytes present”. This therefore cannot be derived from cell counts and must be specified by the user. Without both entries, the Ehrenfest classification remains unavailable.
Derived metrics
—- Concentration factor
- —×
- DEPA dose
- —bn
- Applied dose
- —bn
- Recovery
- —%
- Purity
- —%
Platelets relative to baseline
DEPA: calculated from total volume obtained
calculated from the actual applied volume
platelet yield from whole blood
platelet fraction of all cells
Classification map
Position relative to thresholds—
Classification by six systems
Status and rationale for each systemMethods information for manuscript preparation
complete classifications onlyPrimary sources
- Dohan Ehrenfest DM, Rasmusson L, Albrektsson T. Classification of platelet concentrates: from pure platelet-rich plasma (P-PRP) to leucocyte- and platelet-rich fibrin (L-PRF). Trends Biotechnol 2009;27(3):158–167. doi:10.1016/j.tibtech.2008.11.009
- Mishra A, Harmon K, Woodall J, Vieira A. Sports medicine applications of platelet rich plasma. Curr Pharm Biotechnol 2012;13(7):1185–1195. doi:10.2174/138920112800624283
- DeLong JM, Russell RP, Mazzocca AD. Platelet-rich plasma: the PAW classification system. Arthroscopy 2012;28(7):998–1009. doi:10.1016/j.arthro.2012.04.148
- Mautner K, Malanga GA, Smith J, et al. A call for a standard classification system for future biologic research: the rationale for new PRP nomenclature. PM&R 2015;7(4 Suppl):S53–S59. doi:10.1016/j.pmrj.2015.02.005
- Magalon J, Chateau AL, Bertrand B, et al. DEPA classification: a proposal for standardising PRP use and a retrospective application of available devices. BMJ Open Sport Exerc Med 2016;2(1):e000060. doi:10.1136/bmjsem-2015-000060
- Lana JFSD, Purita J, Paulus C, et al. Contributions for classification of platelet rich plasma – proposal of a new classification: MARSPILL. Regen Med 2017;12(5):565–574. doi:10.2217/rme-2017-0042
Where the original publications are ambiguous. This tool does not close such gaps by making its own definitions; it makes them visible. Three examples: PLRA gives no denominator for the 1% leukocyte and red blood cell thresholds, so L and R remain open. DEPA names one component dose of injected platelets but calculates it from the total volume obtained in the original paper; both values are therefore shown separately. MARSPILL defines Lc-R as above and Lc-P as below baseline, so exact equality falls into neither category, whereas PAW assigns the same case unambiguously to B.
Intended purpose. This tool is intended exclusively for the scientific characterisation and documentation of entered measurements. It makes no statement about efficacy, suitability or indication and provides no diagnosis or patient-specific treatment, dosing or therapeutic recommendation. It does not replace the manufacturer’s instructions for the system used or professional assessment by qualified healthcare personnel.